Device::USB::PCSensor::HidTEMPer::NTC::Internal - The HidTEMPerNTC external sensor
Version 0.02
None
This is the implementation of the HidTEMPerNTC external sensor.
MAX_TEMPERATURE
The highest temperature(150 degrees celsius) this sensor can detect.
MIN_TEMPERATURE
The lowest temperature(-50 degrees celsius) this sensor can detect.
INITIAL_GAIN
The initial gain value used to calculate voltage returned
CALIBRATION_VALUES
Values used to calculate Volt7705Calibration
new()
Returns a new External sensor object.
celsius()
Returns the current temperature from the device in celsius degrees.
The formula used to calculate value based on a calibrated key value is created using the Eureqa tool from Cornell Computational Synthesis Lab, http://ccsl.mae.cornell.edu/eureqa.
Resulting in the use of this formula instead of the provided number list: f(y)=66.7348/(66.7275/(67.8088 - 9.70353*log(0.000251309 + y*y)) - 0.21651)
If you find another formula that is more accurate please drop me a line. The data used can be found in the source code of this file.
Device::USB::PCSensor::HidTEMPer::Sensor
This module internally includes and takes use of the following packages:
use Carp; use Time::HiRes qw / sleep /; use Device::USB::PCSensor::HidTEMPer::Sensor;
This module uses the strict and warning pragmas.
Please report any bugs or missing features using the CPAN RT tool.
Magnus Sulland < msulland@cpan.org >
This code includes findings done by Robin B. Jensen, http://www.drunkardswalk.dk, when converting the received hex values into volt.
Copyright (c) 2010-2011 Magnus Sulland
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install Device::USB::PCSensor::HidTEMPer, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Device::USB::PCSensor::HidTEMPer
CPAN shell
perl -MCPAN -e shell install Device::USB::PCSensor::HidTEMPer
For more information on module installation, please visit the detailed CPAN module installation guide.